37mm to 32mm motorised roller blinds adapter

thingiverse

In the UK, narrow blinds are typically wrapped around a 32mm tube, while longer ones get wrapped around a 37 mm tube. Unfortunately, my Zemismart smart roller motor, which I reviewed here, was designed specifically for use with 37mm tubes, leaving me without options for automating smaller windows. I opted to make the necessary spare parts myself. Please note that this project requires testing - more about it in this article.